The Diesel Power Source Turbonator® VGT is the most advanced turbo upgrade available for the Cummins platform. Featuring a patented ball-bearing variable geometry design, it offers instant spool, superior torque, and unmatched reliability. Perfect for towing or racing, it’s a game-changing evolution in turbocharger technology.
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Built around a proprietary variable vane system and low-friction bearing center section, the Turbonator® adjusts effective turbine A/R in real time. That means earlier boost, cooler EGT under load, and a wider usable powerband for daily driving, mountain grades, or performance use. If you want one turbo that can feel quick in town and confident with a trailer, this is it.
A Variable Geometry Turbocharger (VGT) adapts to engine demand to improve response and control:
In short, a VGT gives you response, control, and drivability without sacrificing top-end airflow.
Variable vanes adjust exhaust energy to the turbine. At low rpm they close to raise velocity for quick spool. As load rises they open to maintain airflow with lower drive pressure. The ball-bearing center section reduces friction so the rotating group accelerates quickly and resists heat-related wear.
Turbonator® VGT upgrades are available for popular Cummins 5.9L (1988–2007) and 6.7L (2007.5–2024) applications. Check each product page for year-specific parts, actuator style, and mounting hardware requirements. Systems are designed to install with factory accessories and emissions equipment when used as directed.
Planning a full system? Explore Cummins Exhaust Manifolds, 3rd Gen Swap Kits, Add-A-Turbo Kits, and S400 Single Turbos.
Yes. The VGT’s vane control and ball-bearing CHRA support quick response and stable EGT on long grades when paired with proper cooling and maintenance.
Many trucks benefit from a calibration update to optimize fueling, vane control, and shift strategy. If injectors or pumps are upgraded, tuning is recommended.
The Turbonator® is designed to operate with factory emissions systems when installed as directed. Always follow local regulations.
A VGT adapts to demand, offering earlier spool and broader torque. A fixed-geometry unit is sized for a narrower window and may trade response for peak flow or vice versa.
Use a quality exhaust manifold, ensure leak-free charge-air paths, and add EGT/boost gauges. Consider transmission health and cooling if power goals increase.
